<template>
  <el-container class="home-container">
      <!-- 头部区域 -->
  <el-header>
      <div>
          <img src="@/assets/logo.png" alt="">
          <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button></el-header>
  <!-- 页面主体区域 -->
  <el-container>
      <!-- 侧边栏 -->
    <el-aside :width="isCollapse?'64px':'200px'"> 
        <div class="toggle-button" @click="toggleCollapse">| | |</div>
      <el-menu
      background-color="#313743"
      text-color="#fff"
      active-text-color="#409EFF"
      unique-opened
      :collapse='isCollapse'
      :collapse-transition='false'
      :router='true'
      :default-active="activePath">
      <!-- 一级菜单 -->
      <el-submenu :index="item.path+''" v-for="item in menulist" :key="item.id">
          <!-- 一级菜单模板区域 -->
        <template slot="title">
          <!-- 图标 -->
          <i :class="iconObj[item.id]"></i>
          <!-- 文本 -->
          <span>{{item.authName}}</span>
        </template>
        <!-- 二级菜单 -->
          <el-menu-item :index="'/'+subItem.path" 
          v-for="subItem in item.children" 
          :key="subItem.id"
          @click="saveNavState('/'+subItem.path)">
              <template slot="title">
                <!-- 图标 -->
                <i class="el-icon-menu"></i>
                <!-- 文本 -->
                <span>{{subItem.authName}}</span>
              </template>
          </el-menu-item>
        
      </el-submenu>      
    </el-menu>
    </el-aside>
    <!-- 右侧内容主体区域 -->
    <el-main>
        <!-- 路由占位符 -->
        <router-view></router-view>
    </el-main>
  </el-container>
</el-container>
</template>

<script>
export default {
    data(){
        return{
            // 左侧菜单数据
            menulist:[],
            iconObj:{
                '125':'iconfont icon-zhanghao',
                '103':'iconfont icon-yonghuanquan',
                '101':'iconfont icon-shangpin',
                '102':'iconfont icon-quanbudingdan',
                '145':'iconfont icon-yonghutongji'
            
            },
            isCollapse:false,
            activePath:''
        }
    },
    

    created(){
        this.getMenuList(),
        this.activePath=window.sessionStorage.getItem('activePath')

    },
    methods: {
        logout() {
        // window.sessionStorage.clear();
        window.sessionStorage.removeItem("token");
        this.$router.push("/login");
        },
        async getMenuList(){
            const {data:res}=await this.$http.get('menus');
            console.log(res);
            if (res.meta.status!==200) return this.$message.console.error(res.meta.msg);
            this.menulist=res.data;
        },
        toggleCollapse(){
            this.isCollapse=!this.isCollapse
        },
        saveNavState(activePath){
            window.sessionStorage.setItem('activePath',activePath);
            this.activePath=activePath;
        }
    },
};
</script>

<style lang="less" scoped>

.home-container{
    height: 100%;
}
.el-header{
    background-color: #373D41;
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #fff;
    font-size: 20px;
    >div{
        display: flex;
        align-items: center;
    }
    span{
        margin-left: 20px;
    }
    img{
        margin-left: 15px;
        border-radius: 50%;
        width: 45px;
        height: 45px;
        background-color: #fff;
        // vertical-align: middle;

    }
}
.el-aside{
    background-color: #313743;
    .el-menu{
        border-right: none;
    }
}
.el-main{
    background-color: #e9edf0;
}
.iconfont{
    margin-right: 10px;
}
.toggle-button{
    background-color: #4A5064;
    font-size: 10px;
    text-align: center;
    color: #fff;
    letter-spacing: 0.2;
    line-height: 24px;
    cursor: pointer;
}
</style>
